La question de la validation W3C- erreurs naturelles avec WP (Créer un compte)

# Error  Line 22, Column 31: end tag for element « H2 » which is not open

<?php the_date('','<h2>‘,’</h2>‘); ?>


The Validator found an end tag for the above element, but that element is not currently open. This is often caused by a leftover end tag from an element that was removed during editing, or by an implicitly closed element (if you have an error related to an element being used where it is not allowed, this is almost certainly the case). In the latter case this error will disappear as soon as you fix the original problem.

If this error occurred in a script section of your document, you should probably read this FAQ entry.

# Warning Line 24, Column 6: unclosed start-tag requires SHORTTAG YES

<div <?php post_class() ?> id= »post-<?php the_ID(); ?>« >

The construct <foo<bar> is valid in HTML (it is an example of the rather obscure “Shorttags” feature) but its use is not recommended. In most cases, this is a

Validation Output:  3 Errors

   1. Error Line 11, Column 24: character « ‘ » not allowed in prolog

      <?php the_date('','<h2>‘,’</h2>‘); ?>

      ✉
   2. Error Line 13, Column 1: no document type declaration; will parse without validation

      <div <?php post_class() ?> id= »post-<?php the_ID(); ?>« >

      ✉

      The document type could not be determined, because the document had no correct DOCTYPE declaration. The document does not look like HTML, therefore automatic fallback could not be performed, and the document was only checked against basic markup syntax.

      Learn how to add a doctype to your document from our FAQ, or use the validator’s Document Type option to validate your document against a specific Document Type.
   3. Warning Line 13, Column 6: unclosed start-tag requires SHORTTAG YES

      <div <?php post_class() ?> id= »post-<?php the_ID(); ?>« >

      ✉

      The construct <foo<bar> is valid in HTML (it is an example of the rather obscure “Shorttags” feature) but its use is not recommended. In most cases, this is a typo that you will want to fix. If you really want to use shorttags, be aware that they are not well implemented by browsers.
   4. Error Line 31, Column 3: document type does not allow element « P » here

      <p><?php _e('Sorry, no posts matched your criteria.'); ?></p>

      ✉

      The element named above was found in a context where it is not allowed. This could mean that you have incorrectly nested elements — such as a « style » element in the « body » section instead of inside « head » — or two elements that overlap (which is not allowed).

      One common cause for this error is the use of XHTML syntax in HTML documents. Due to HTML’s rules of implicitly closed elements, this error can create cascading effects. For instance, using XHTML’s « self-closing » tags for « meta » and « link » in the « head » section of a HTML document may cause the parser to infer the end of the « head » section and the beginning of the « body » section (where « link » and « meta » are not allowed; hence the reported error).